augustoasilva commented on a change in pull request #11052:
URL: https://github.com/apache/arrow/pull/11052#discussion_r705780612
##########
File path: cpp/src/gandiva/gdv_function_stubs.cc
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@@ -606,6 +606,53 @@ const char* gdv_fn_upper_utf8(int64_t context, const char*
data, int32_t data_le
return out;
}
+
+// Returns the soundex code for a given string
+const char* gdv_fn_soundex_utf8(gdv_int64 ctx, const char* in, gdv_int32
in_len,
+ int32_t* out_len) {
+ if (in_len <= 0) {
+ *out_len = 0;
+ return "";
+ }
+
+ // The soundex code is composed by one letter and three numbers
+ char* ret = reinterpret_cast<char*>(gdv_fn_context_arena_malloc(ctx, 4));
+ if (ret == nullptr) {
+ gdv_fn_context_set_error_msg(ctx, "Could not allocate memory for output
string");
+ *out_len = 0;
+ return "";
+ }
+ // Mapping -> ABCDEFGHIJKLMNOPQRSTUVWXYZ
+ auto mappings = std::string("01230120022455012623010202");
Review comment:
I created a static char array for the mappings and also moved the
function to the precompiled directory.
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